Review_III - Final Review Session OreOluwa Badaki...

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Final Review Session
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OreOluwa Badaki, Co-President, Big Red Relief, Cornell '12
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What mechanisms come into play when blood pressure drops? 1. Kidney senses drop in BP and releases renin 2. Renin activates ACE (angiotensin converting enzyme) 3. Ace converts Angiotensin I to Angiotensin II 4. Angiotensin II causes smooth muscle of the arteries to contract. 5. Angiotension II stimulates aldosterone released from adrenal cortex. 6. Aldosterone works on kidney to increase the reabsorption of sodium 7. Increase in blood sodium increases water volume and blood volume
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What mechanisms come into play when serum calcium drops? 1. Parathyroid senses drop in Ca and releases parathyroid hormone 2. Parathyroid hormone causes release of Ca from bone 3. Parathyroid hormone causes increase uptake of Ca from kidneys 4. Parathyroid hormone activates Vitamin D 5. Vitamin D increases the uptake of Ca from food into intestine wall
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What mechanisms come into play when serum calcium increases? 1. Thyroid senses increase in Ca and releases calcitonin 2. Calcitonin causes stops loss of Ca from bone due to parathyroid horm. 3. Calcitonin blocks uptake Ca from kidneys causing Ca loss in urine 4. May block calcium absorption from intestines?
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Why are low carb diets good for the treatment of hypertension? 1. Increases sodium loss by the kidneys 2. Decreases energy intake – decreases body weight
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What would happen if, as a nation, we reduced our meat consumption? 1. Reduces fat intake 2. Reduces risk of some cancers 3. Saves water 4. Saves energy 5. Saves rain forests
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What are the advantages of consuming a little meat? 1. Increases the absorption of iron 2. Increases available B 12
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Which dietary techniques are most likely to reduce risk of cancer? 1. Take vitamin A supplements 2. Take vitamin C supplements 3. Take vitamin E supplements 4. Eat fruits and vegetables 5. Reduce total intake
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At which stage in cancer will nutrition have it’s greatest effect?
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